435 Mountain Ave. Berthoud, CO 80513

For dependable remodeling in Boulder, CO, homeowners and businesses turn to a contractor who blends craftsmanship with clear communication. Lefort Built is a family-owned, Class A Licensed General Contractor based in nearby Berthoud, and we’ve built our name across the Front Range on quality work that stands the test of time. From updating a historic home near Mapleton Hill to renovating a property along the Pearl Street corridor, we deliver precision, honesty, and results you can count on — on every project, large or small.
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Your home should evolve with your needs. Our home remodeling services in Boulder cover finished basements, kitchen and bathroom makeovers, room additions, sunrooms, and complete interior transformations. Whether you’re near the University Hill area, Chautauqua, or out toward Gunbarrel, we help you create more space, comfort, and lasting value. Every project starts with a clear plan, fixed-cost line items, and transparent updates — so you always know exactly what’s being done and what it costs.
We work throughout the region too — explore our home remodeling in Longmont, CO and remodeling services in Broomfield, CO for projects across nearby communities.

A great space helps your business thrive. Our commercial remodeling team handles tenant improvements, office and retail buildouts, and ground-up commercial projects for businesses throughout Boulder. We understand the local permitting landscape and work efficiently to keep your space functional, on-brand, and ready for customers — minimizing downtime so you can stay open. From a single storefront refresh to a full multi-suite renovation, we manage every detail so you can focus on running your business.

For those ready to build from scratch, our custom homes turn your vision into a place you’ll cherish for years. We guide you through design, planning, budgeting, and construction with expert craftsmanship at every stage. Whether you want a modern build with Flatirons views or a timeless family home in an established neighborhood, we tailor every detail to your lifestyle, taste, and budget — and we take pride in on-time, on-budget completions.

Choosing the right contractor comes down to trust. As a Berthoud-based construction company serving Northern Colorado, we pair deep local knowledge with the resources of a full-service general contractor. Clients choose us for fast estimates, professional drawings, durable materials, and a team that respects your property from the first consultation to the final walkthrough. We understand Boulder’s climate, building codes, and neighborhoods — and we build accordingly.
See every community we work in on our areas we serve across the Front Range page.

Ready to transform your space? Whether it’s a home remodel, a commercial buildout, or a brand-new custom home in Boulder, CO, Lefort Built is here to bring your vision to life with quality and integrity.
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Get answers to common questions about construction, remodeling, permits, and hiring Lefort Built in Boulder, Colorado.
Lefort Built Construction Company provides a full range of residential and commercial construction services in Boulder including home remodeling, basement finishing, kitchen and bathroom renovations, home additions, ADU construction, custom home building, sunrooms, structural repair, foundation repair, commercial tenant improvements, and ground up commercial construction. We serve all Boulder neighborhoods from University Hill and Chautauqua to Gunbarrel and the Pearl Street corridor.
Yes. Lefort Built is a Class A Licensed General Contractor, the highest license classification in Colorado, valid throughout the City of Boulder and Boulder County. All work is permitted through Boulder’s Planning and Development Services department and passes all required inspections. You can verify our license through the Colorado Department of Regulatory Agencies at any time.
Boulder has some of the highest construction costs in Colorado due to elevated labor rates, stricter energy code requirements, and higher permit fees. General ranges as of 2026: kitchen remodel $40,000 to $120,000 depending on scope and finishes; bathroom remodel $20,000 to $60,000; basement finish $65 to $105 per square foot; home addition $200 to $400 per square foot. Lefort Built provides a detailed itemized estimate before any work begins so you can make an informed decision with no surprises.
Boulder’s building department is stricter and slower than most surrounding municipalities. Residential permit review typically takes 3 to 6 weeks for straightforward projects and 6 to 12 weeks for larger or more complex work. Commercial projects take longer. Boulder also requires more documentation than many comparable jurisdictions, including energy compliance reports and detailed construction drawings. Lefort Built prepares complete permit packages from the start to avoid back-and-forth with the building department that causes delays.
Yes. Boulder adopts the 2024 IRC and IBC with local amendments that are stricter than the state baseline in several areas including energy efficiency, green building, and ADU regulations. Lefort Built has experience navigating Boulder’s specific code requirements and knows where local amendments differ from what contractors in other jurisdictions may assume. This matters because a contractor unfamiliar with Boulder’s code will produce permit sets that get rejected, adding weeks to your project timeline.
Yes. Lefort Built completes commercial tenant improvements, office and retail build-outs, and commercial remodeling projects throughout Boulder. We understand Boulder’s commercial permitting process and local business landscape. Whether you are refreshing a storefront on Pearl Street, reconfiguring office space in Gunbarrel, or building out a new retail location, Lefort Built manages the project from permit to punch list so you can stay focused on running your business.
Lefort Built is based in Berthoud, 20 minutes from Boulder, which means consistent on-site presence and fast response times. More importantly, we bring Class A licensing, Front Range construction experience, and deep familiarity with Boulder’s specific code requirements and permit process. Our clients choose us because of honest communication, transparent pricing, and a track record of delivering projects on time and on budget, not because of marketing claims.
Call us at (720) 336-9935 or submit a request through the contact form on this page. We will schedule a free on-site consultation, review your project goals and site conditions, and provide a clear scope and estimate. We serve all Boulder neighborhoods and surrounding Boulder County communities including Superior, Louisville, Lafayette, Gunbarrel, and Niwot.